Lyon County times. [volume] (Silver City, Nev.) 1874-1907, 1887-02-26
OFFICIAL REPORT.


cess.
Upon the 9Th day Of February we CON-
menced running three pans and settlers with
DR.. Rae's electric attachment and one pan
and settler in the old method without elec-
,ricity), first having taken all four Of the
pans and settlers to pieces and thoroughly
cleaning them. We run the mill on those
pans and settlers alone stopping all the
other work, in order to be certain to not get
anything mixed. We selected our best
workmen, and all the quicksilver used was
carefully weighed out for each system sepa.
rately.
DR.. Rae, after adjusting the brushes on
the dynamo, placed the test in my charge,
saying: "Ciye me fair, just and honest
deal" Some Of the men were very skepli-
cal, but all worked for fair test. Upon
the start No. pan and settler were used the
first two days on 'green shines" and ''slums"
that had never been plowed or scraped, and
no sand having been mixed with them.
With No. 2, 3 and 4 the regular prepared
shines aud slums, with sand, were worked.
Nos. I, and were the pans and settlers
connected with the electric system. No. 4
was run in the old way.
After running four charges Of the screen
shines" and 'slums" through No. pan, and
testing all these, we found that to all appear
ances the electricity workedequally as well on
the screen" stuff as upon the prepared ma
terial. Assays were taken frem each settler
AS soon as it was filed, and also when the
settlers were discharged. These assays
showed a large percentage OF saving bullion
by the electric settlers over settler No. 4,
the old method. After the first day, the as
says from the settlers, taken when first filled
showed . marked decrease in value in com.
parison with settler No. 4, thus proving that
the action Of the electricity was affecting the
bulk Of quicksilver, rendering amaleamation
more perfect in the pans.
The quicksilver returned from the settlers
Nos. I, 2, 5 was bright, lively and healthy.
apparently free from iron and scum.
would remark that on the 4th day the
No. 4 settler showed that it was being bene-
fitted by the Others. This was easily traced
to the ground currents from Nos. !, and 3
settlers.
During the seven days run paintings were
made from all the settlers. which showed the
superiority Of the new method.
The sluice boxes were SO arranged that
two sluices were given exclusively to Nos. J.,
4 and 3 settlers, and two sluices to No. 4
settler. A daily examination OF sluices after
each draw off exhibited the fact of the sue.
cess. while scarcely trace of Toured quick.
silver could be noticed on the Rae sluices,
the No. 4 sluices showed plenty as usual.
During the run 1871 pounds Of quicksilver
was used in Nos. l, 2 and 3 settlers on 81
tons OF material worked, and 1865 pounds
was returned back, showing a loss Of ~
pounds, or about 5 ounces to the ton. No. 4
used $50 pounds Of quicksilver on ~ tons,
and 6I6 pounds was returned back, showing
loss of "a pounds. or pounds to the ton.
Strict attention was paid to assaying the
pulp, as delivered from the pans to the set.
tiers, and when the settlers were discharged.
The bullion returns were as follows:
No. of tons worked (old method) ~; bull
lion produced, 6II.so ounces; 6neness
sa.Iooo; value, SAL oo; 6neness Of gold re.
turned, $1,000.
Rae process, 81 tons produced i2Io.So
ounces of bullion, the fneness Of which was
IFS. 1000, valued at $iSI IS. Increase in
bullion product over old process, AN per
cent; increase Of fneness Of bullion, o.
1000; 6neness Of gold returned, $1,000; gain
on returns of gold product over old method,
1888 per cent; saving Of quicksilver, 1888
per cent.
This test was made BY daylight. in order
toguard against any mistakes that might &C.
cur during the night. and also to make it
possible to give it my attention.
In conclusion, l unhesitatingly pronounce
the trial most perfect and emphatic success.
w. A. RULisoN.
Sup't. and Assayer Of J. M. Douglass d Co.'S
mill.
Dayton, Nevada, Feb. ~, 1887.
Being present when this test was made,
fully concur with the above report as to its
corr ectness. w. DOUGLAS,
Treas. Of J. M. Douglass Mill Co.
DAYTON, New, Feb. 24ih, 1887.
have watched closely and with great in.
teress the Rae test as reported by Mr.. Ruli.i
son, and am thoroughly satisfied that 1t was
an exhaustive test. am also satisfied that
his report is accurate and reliable.
B. l. TURMAN.
OF the Little Bonanza Mill Co.
We, the undersigned employees at the
mill Of ]. NJ. Douglass & Co., were present
and performed all the work, and say that
the test was square, no favor being shown
either the old or new system.
J. X. PuRsIEy, Millwright,
w. H. RuLIsoN, Amalgamator.